Voltage regulation in distribution system using the combined DVR

Nakamura, Sota; Aoki, Mutsumi; Ukai, Hiroyuki

doi:10.1109/ipec.2014.6869925

Cited by 3 publications

(1 citation statement)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…With reference to the shortcomings noted in the literature review, this paper proposes the utilization of a dynamic voltage restorer (DVR) to manage voltage issues in LV distribution systems without a centralized or semi-coordinated controller. DVR is a series compensator which is mainly placed at sensitive loads to regulate the voltage tightly and rapidly [26,27]. Compared to SVC, D-STATCOM and PFC, it requires much lower device rating for the same level of voltage regulation.…”

mentioning

confidence: 99%

A New Approach to Improve PV Power Injection in LV Electrical Systems Using DVR

Sagha¹,

Mokhtari

Arefi

et al. 2018

IEEE Systems Journal

View full text Add to dashboard Cite

With increasing photovoltaic (PV) penetration in low voltage (LV) distribution networks, voltage violation during the peak PV generation period is one of the main power quality concerns. To minimize the PV power curtailment caused by voltage violations, this paper proposes a new approach utilizing one dynamic voltage restorer (DVR) at the secondary of existing urban distribution transformer as a continuous voltage compensator with an accompanying control algorithm. The voltage compensation algorithm controls the DVR in real-time to prevent over-voltage and under-voltage at all network nodes, thereby maximizing PV injection and preventing equipment damage. The controller uses the equivalent line impedance of network to estimate the average voltage of load points without the need for any communication links for measuring load voltages.In this approach, the fixed tap changer of the distribution transformer is also optimally adjusted to minimize the DVR rating using a proposed offline optimization method. Simulation results on IEEE LV test feeder prove the ability of the DVR in maintaining all network node voltages within the allowable range in peak demand and peak PV generation periods with the benefit of injecting only a small amount of active and reactive power to the system, in contrast to alternative algorithms.

show abstract

mentioning

confidence: 99%